v3.25.2
Consolidated Obligations (Bonds by Maturity Date) (Details) - USD ($)
$ in Millions
 6 Months Ended
Jun. 30, 2025
Dec. 31, 2024
Contractual Maturity    
Total par value $ 71,055 $ 83,170
Weighted Average Interest Rate    
Due in one year or less 3.43%  
One to two years 2.80%  
Two to three years 3.34%  
Three to four years 3.54%  
Four to five years 4.20%  
Thereafter 3.56%  
Total par value 3.35%  
By Maturity or Next Call Date    
Contractual Maturity    
Due in one year or less $ 57,352  
One to two years 9,472  
Two to three years 2,840  
Three to four years 419  
Four to five years 334  
Thereafter 638  
Contractual Maturity Date Long-Term Debt    
Contractual Maturity    
Due in one year or less 29,586  
One to two years 16,562  
Two to three years 4,961  
Three to four years 3,904  
Four to five years 3,973  
Thereafter $ 12,069  
Minimum    
Extinguishment of Debt [Line Items]    
Debt Instrument, Term 1 year  
Maximum    
Extinguishment of Debt [Line Items]    
Debt Instrument, Term 20 years